setup:
  - do:
      indices.create:
        index: test
        body:
            mappings:
              properties:
                join_field:
                  type: join
                  relations:
                    parent: child

  - do:
      index:
        index: test
        id:    1
        body:  {"foo": "bar", "join_field": {"name" : "parent"} }

  - do:
      index:
        index: test
        id:    2
        routing: 1
        body:  {"bar": "baz", "join_field": { "name" : "child", "parent": "1"} }

  - do:
      indices.refresh: {}

---
teardown:
  - skip:
      version: " - 7.6.99"
      reason: "implemented in 7.7.0"

  - do:
      cluster.put_settings:
        body:
          transient:
            search.allow_expensive_queries: null

---
"Parent/child inner hits":
    - do:
        search:
          rest_total_hits_as_int: true
          body: { "query" : { "has_child" : { "type" : "child", "query" : { "match_all" : {} }, "inner_hits" : {} } } }
    - match: { hits.total: 1 }
    - match: { hits.hits.0._index: "test" }
    - match: { hits.hits.0._id: "1" }
    - match: { hits.hits.0.inner_hits.child.hits.hits.0._index: "test"}
    - match: { hits.hits.0.inner_hits.child.hits.hits.0._id: "2" }
    - is_false: hits.hits.0.inner_hits.child.hits.hits.0._nested

---
"Parent/child inner hits with seq no":
  - do:
      search:
        body: { "query" : { "has_child" :
            { "type" : "child", "query" : { "match_all" : {} }, "inner_hits" : { "seq_no_primary_term": true} }
        } }
  - match: { hits.hits.0._index: "test" }
  - match: { hits.hits.0._id: "1" }
  - match: { hits.hits.0.inner_hits.child.hits.hits.0._index: "test"}
  - match: { hits.hits.0.inner_hits.child.hits.hits.0._id: "2" }
  - is_false: hits.hits.0.inner_hits.child.hits.hits.0._nested
  - gte: { hits.hits.0.inner_hits.child.hits.hits.0._seq_no: 0 }
  - gte: { hits.hits.0.inner_hits.child.hits.hits.0._primary_term: 1 }

---
"HasChild disallow expensive queries":
  - skip:
      version: " - 7.6.99"
      reason: "implemented in 7.7.0"

  ### Update setting to false
  - do:
      cluster.put_settings:
        body:
          transient:
            search.allow_expensive_queries: "false"
        flat_settings: true

  - match: {transient: {search.allow_expensive_queries: "false"}}

  - do:
      catch: /\[joining\] queries cannot be executed when \'search.allow_expensive_queries\' is set to false./
      search:
        body: { "query": { "has_child": { "type": "child", "query": { "match_all": {} }, "inner_hits": {} } } }